Registration Dossier
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EC number: 426-730-3 | CAS number: 123439-82-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.014 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.7 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 26.1 mg/kg sediment dw
- Assessment factor:
- 1
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.521 mg/kg soil dw
- Assessment factor:
- 1
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
In accordance with Regulation (EC) No. 1272/2008 (CLP), a substance should be classified as an acute aquatic hazard if the 96-hr LC50 for fish, the 72- or 96-hr EC50 for algae, or the 48-hr EC50 for crustaceans is 1 mg/L or less. The reliable short-term toxicity (LC50/EC50) of tetraammineplatinum(II) hydrogen carbonate to aquatic invertebrates (Daphnia magna) is 28 mg/L (Lebertz, 1997) while the short-term toxicity of the related substance tetraammineplatinum(II) diacetate to aquatic species for the remaining trophic levels ranges from 52 mg/L to > 100 mg/L (Migchielsen, 2006a; 2006b). Therefore tetraammineplatinum(II) hydrogen carbonate does not require classification as an acute aquatic hazard under CLP.
Under CLP, a substance may be classified as a chronic aquatic hazard if adequate chronic toxicity data (chronic NOEC or EC value) are available for at least one trophic level (and with a consideration of biodegradability). Biodegradation is not considered to be a relevant endpoint for tetraammineplatinum(II) hydrogen carbonate. Nevertheless, based on the ‘chronic’ NOEC of 1.0 mg/L (0.47 mg Pt/L) identified in the 72-hr algal growth inhibition study on the related substance tetraammineplatinum(II) diacetate (Migchielsen, 2006b) and considering that tetraammineplatinum(II) hydrogen carbonate has a harmonised classification for aquatic chronic toxicity (category 3) according to Annex VI of the CLP regulation, as such this classification is adopted here.
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